Can you download a file from a URL without the full file name?

Question

So as you can see below I am downloading a file from VRChat's website. Everything works when I use the full name of the file. However, their filenames change every time they update the file. For instance, the file name currently looks like this:

"VRCSDK2-2021.04.21.11.58_Public.unitypackage".

If they update the file then the name change breaks my code. Is there a way to write my file name so that it will not break when they update? Such as a way to have the code look for any file starting with "VRCSDK2"? Thanks for all the help!

         private static string sdkStart = "https://files.vrchat.cloud/sdk/";
  
 ...
  
         private static void DownloadSDK(string assetName)
         {
             GetPath();
             WebClient w = new WebClient();
             w.Headers.Set(HttpRequestHeader.UserAgent, "Webkit Gecko wHTTPS (Keep Alive 55)");
             w.QueryString.Add("assetName", assetName);
             w.DownloadFileCompleted += FileDownloadCompleted;
             w.DownloadProgressChanged += FileDownloadProgress;
             string url = sdkStart + assetName;
             w.DownloadFileAsync(new Uri(url), Path + assetName);
         }

Answer 1

Answer by Controser · May 08, 2021 at 06:35 PM

Never mind! I found the solution with someone else's help. For those who may need to know, if you have a link that redirects to the download then you can do this:

 private static void DoDownload()
 {
     var w = new WebClient();
     w.Headers.Set(HttpRequestHeader.UserAgent, "Webkit Gecko wHTTPS (Keep Alive 55)");
     w.DownloadFileCompleted += FileDownloadCompleted;
     w.DownloadProgressChanged += FileDownloadProgress;
     var url = "link here that is the redirect";
     w.DownloadFileAsync(new Uri(url), Application.dataPath + "/assetName.unitypackage");
 }
 private static void FileDownloadProgress(object sender, DownloadProgressChangedEventArgs e) => Debug.Log($"Progress: {e.ProgressPercentage}%");
 private static void FileDownloadCompleted(object sender, AsyncCompletedEventArgs e) => Debug.Log("Done.");

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Can you download a file from a URL without the full file name?

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